Triethylamine → HCID 22679035, compound

Participants

Reaction Steps

To a stirred mixture of 2-methyl-2-[2-(2,2,6,6-tetramethylpiperidin-1-yloxy)-propionylamino]-propionic acid (0.50 g; 0.0016 mol), triethylamine (0.16 g; 0.0016 mol) and acetone (5 ml) there was added ethyl chloroformate (0.17 g; 0.0016 mol). After 2 hours, the mixture was filtered and the filtrate was concentrated under vacuum. The residue was mixed with hexane (5 ml) and the solution was decanted from the precipitated solid. The decanted solution was concentrated under vacuum to give 0.30 g (64% yield) of 4,4-dimethyl-2-[1-(2,2,6,6-tetramethylpiperidin-1-yloxy)-ethyl]-4H-oxazol-5-one (AZTEMPO) as a yellow oil.

Provenance & Evidence